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JPS56130842A - Playback stylus for playback element of static capacitor change detecting type - Google Patents

Playback stylus for playback element of static capacitor change detecting type

Info

Publication number
JPS56130842A
JPS56130842A JP3247080A JP3247080A JPS56130842A JP S56130842 A JPS56130842 A JP S56130842A JP 3247080 A JP3247080 A JP 3247080A JP 3247080 A JP3247080 A JP 3247080A JP S56130842 A JPS56130842 A JP S56130842A
Authority
JP
Japan
Prior art keywords
electrode
playback
layer
discharge
high resistance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP3247080A
Other languages
Japanese (ja)
Other versions
JPS5938652B2 (en
Inventor
Hideaki Takehara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP3247080A priority Critical patent/JPS5938652B2/en
Publication of JPS56130842A publication Critical patent/JPS56130842A/en
Publication of JPS5938652B2 publication Critical patent/JPS5938652B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
    • G11B9/06—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using record carriers having variable electrical capacitance; Record carriers therefor
    • G11B9/07—Heads for reproducing capacitive information
    • G11B9/075—Heads for reproducing capacitive information using mechanical contact with record carrier, e.g. by stylus

Landscapes

  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

PURPOSE:To discharge the stored static electricity, by providing the electrode for discharge, near the electrode for signal detection provided at the playback stylus. CONSTITUTION:The playback stylus main body 1 made of greater hardness material having wear-resistance is provided with the signal detecting electrode 2 and the discharge use electode 3. On the electrode attaching and forming plane of the playback stylus main body 1, the high resistance substance near the both ends of the layer I is changed into the conductive substance by the means of oxidation, reduction, element doping and ion injection and the electrode can also be formed. The protective layer P prevents the conductive high resistance substance layer I other than required part for the electrode forming process. As layer I of the high resistance substance, titanium oxide and hafnium oxide are used.
JP3247080A 1980-03-14 1980-03-14 Regeneration needle of regeneration element that detects changes in capacitance value Expired JPS5938652B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3247080A JPS5938652B2 (en) 1980-03-14 1980-03-14 Regeneration needle of regeneration element that detects changes in capacitance value

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3247080A JPS5938652B2 (en) 1980-03-14 1980-03-14 Regeneration needle of regeneration element that detects changes in capacitance value

Publications (2)

Publication Number Publication Date
JPS56130842A true JPS56130842A (en) 1981-10-14
JPS5938652B2 JPS5938652B2 (en) 1984-09-18

Family

ID=12359851

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3247080A Expired JPS5938652B2 (en) 1980-03-14 1980-03-14 Regeneration needle of regeneration element that detects changes in capacitance value

Country Status (1)

Country Link
JP (1) JPS5938652B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996035212A1 (en) * 1995-04-29 1996-11-07 International Business Machines Corporation Micromechanically manufactured read/write head for charge coupled devices
US6088320A (en) * 1997-02-19 2000-07-11 International Business Machines Corporation Micro-mechanically fabricated read/write head with a strengthening shell on the tip shaft

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996035212A1 (en) * 1995-04-29 1996-11-07 International Business Machines Corporation Micromechanically manufactured read/write head for charge coupled devices
US6088320A (en) * 1997-02-19 2000-07-11 International Business Machines Corporation Micro-mechanically fabricated read/write head with a strengthening shell on the tip shaft

Also Published As

Publication number Publication date
JPS5938652B2 (en) 1984-09-18

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